The Sicilian Najdorf is undoubtedly one of the most popular chess openings. It was played with great success by world champions Bobby Fischer and Garry Kasparov and today it remains a favourite defense at all levels from grandmaster to beginner. 6 Bg5 is widely acknowledged as a critical test of the Sicilian Najdorf. In this book, International Master Kevin Goh Wei Ming examines the most theoretically important and instructive games in recent years, highlighting the main developments and novelties for both sides. Whether playing White or Black, this book provides you with essential knowledge of an important opening.